Arkham Origins, even though it was a hot steaming turd, did a few things right. The detective system with the cases. That Lacey Towers case made that fucking game the way it was presented with the mystery behind it. They need to bring that back. Maybe not the VCR like function of fast forwarding and rewinding time to see a small flash drive that fell in a vent, but something like that. The Batmobile needs to be completely reworked. It should be a method of travel, not a method of travel, solving puzzles, doing 50% of the combat, progression through levels that should be doable on foot, and so forth. Also I'd like to see multiple paths for doing things like a Deus Ex kind of system. Right now it seems open but is incredibly linear in the way you progress through areas.
Combat, while it works, is overdone in the games. Batman dismantles an army a night according to this series. I just don't like the combat rooms that are the same thing with different enemy layouts over and over again where he takes out 30 people at a time. The predator stuff is good, although I can see it being improved. I dunno how but there's something there that can be improved on I'm sure of it, be it making it more dynamic or improving the AI. Bosses need to be done properly. Again Origins, even though it was a hot turd, had good boss fights. That Deathstroke fight was fucking amazing. In Arkham Knight it's a shitty tank battle and he get's punched once and knocked unconscious. Absolutely retarded. Rocksteady flat out blows at boss fights. Time and again they've shown they suck at them. More importantly there are like THREE boss fights using the car combat in Arkham Knight. No. Fucking. More. Just stop. If people wanted to play Twisted Metal they'd play Twisted Metal.
Importantly they need to stop with the bullshit trope they developed of Gotham being a wasteland in each and every single game. I mean Asylum it worked, and even City. But Origins and Knight just shoehorned it to hell. I want a living world, not a barren gritty ditch with 100 references packed into a square city block just cause we have to for you nerds. As for the Joker... I'm of two minds. On one hand he's clearly the most famous Batman villain and they feed off of one another. On the other, he's dead. Stop. Get original you hacks.
Will any of this happen? Of course not.